	@media screen and (min-width:1200px) {
	  html {
	    font-size: 20px;
	  }
	}

	@media screen and (min-width:800px) and(max-width:1200px) {
	  html {
	    font-size: 16px;
	  }
	}

	@media screen and (max-width:800px) {
	  html {
	    font-size: 12px;
	  }
	}

	* {
	  margin: 0;
	  padding: 0;
	  box-sizing: border-box;
	}

	html,
	body {
	  width: 100%;
	  height: 100%;
	  font-family: '楷体';
	}

	div {
	  width: 30rem;
	  height: 6rem;
	  margin: 2rem auto;
	  background-color: #409EFF;
	  padding: 1rem;
	  color: white;
	  border-radius: 6px;
	}

	p {
	  font-size: 1.5rem;
	  float: left;
	  height: 4rem;
	  line-height: 4rem;
	}

	span {
	  display: block;
	  float: left;
	  height: 4rem;
	  line-height: 4rem;
	  margin-right: 0.5rem;
	}